How do I normalize my S21 to value at my lowest frequency
Embarrassed to ask, but I want to create a plot of S21, where it is normalize to a value at my lowest frequency. There doesn't seem to be a simple way of doing that, and I've tried.
In the competition, ADS, I would simply define S(2,1)/S(2,1).
Here, in circuit designer it doesn't recognize any types of brackets after the S parameter